scribble also crashes on my device with the current firmware. Unfortunately, I am rather clueless about where the crash exactly happens. I tried the approach using core files, but the post-mortem debugger did not show any reasonable stack trace. It could be that the libraries were updated (although I used the newest sdk from github).
If someone has a working installation with a live-debugger, it would be great to see where the program crashes.
About the rotation issue: I think I fixed it, but now I cannot test it... The binary is attached.